Paper Abstract and Keywords |
Presentation |
2009-02-05 16:35
A Note on Adaptive Resolution Enhancement of Still Images Based on SVDD Takahiro Ogawa, Miki Haseyama (Hokkaido Univ.) ITS2008-82 IE2008-252 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This paper presents a support vector data description (SVDD) based adaptive resolution enhancement of still images. First, the proposed method estimates unknown high-frequency components of a target image in such a way that the distance between the estimation result and the center of hypersphere obtained from training high-resolution (HR) local images by the SVDD becomes minimum. In this scheme, since local images between two different levels of a pyramid structure are similar to each other, local images within the target low resolution (LR) image are utilized as the training data. Furthermore, in order to realize accurate resolution enhancement of images containing several kinds of textures, these training local images are previously clustered, and the above estimation scheme is performed by using the hypersphere of each cluster. In this procedure, the proposed method determines the final output based on the probability defined from the distance between the estimation result and the center of the hypersphere or each cluster. Therefore, this approach provides a solution to a problem of traditional methods of not being able to perform adaptive estimation of the high-frequency components, and accurate resolution enhancement can be expected by our method. Some experimental results are shown to verify the performance of the proposed method. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Resolution enhancement / Image enlargement / Super-resolution / SVDD / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 108, no. 425, IE2008-252, pp. 269-274, Feb. 2009. |
Paper # |
IE2008-252 |
Date of Issue |
2009-01-28 (ITS, IE) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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ITS2008-82 IE2008-252 |
Conference Information |
Committee |
IE ITS ITE-HI ITE-ME ITE-AIT |
Conference Date |
2009-02-04 - 2009-02-05 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Graduate School of Information Science and Technology Hokkaido Univ |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Image Processings for ITS, Visual Media Engineering, etc. |
Paper Information |
Registration To |
IE |
Conference Code |
2009-02-IE-ITS-HI-ME-AIT |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Note on Adaptive Resolution Enhancement of Still Images Based on SVDD |
Sub Title (in English) |
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Keyword(1) |
Resolution enhancement |
Keyword(2) |
Image enlargement |
Keyword(3) |
Super-resolution |
Keyword(4) |
SVDD |
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1st Author's Name |
Takahiro Ogawa |
1st Author's Affiliation |
Hokkaido University (Hokkaido Univ.) |
2nd Author's Name |
Miki Haseyama |
2nd Author's Affiliation |
Hokkaido University (Hokkaido Univ.) |
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Speaker |
Author-1 |
Date Time |
2009-02-05 16:35:00 |
Presentation Time |
25 minutes |
Registration for |
IE |
Paper # |
ITS2008-82, IE2008-252 |
Volume (vol) |
vol.108 |
Number (no) |
no.424(ITS), no.425(IE) |
Page |
pp.269-274 |
#Pages |
6 |
Date of Issue |
2009-01-28 (ITS, IE) |
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